EPA Publishes Air Toxics Rule for Polyvinyl Chloride

The Environmental Protection Agency published a proposed rule in the Federal Register May 20 (76 Fed. Reg. 29,528) that would require polyvinyl chloride producers to control a wider range of pollutants. The revised national emissions standards for hazardous air pollutants for polyvinyl chloride and copolymers production would set more stringent emissions control requirements for vinyl chloride and add new control requirements for total organic air toxics such as chloroform and formaldehyde, chlorinated di-benzo dioxins, and furans, and hydrogen chloride. The proposed rule would revise 40 C.F.R. Part 63, setting emissions limits for process vents, resin processing, equipment leaks, wastewater, heat exchangers, and storage vessels at polyvinyl chloride plants. The rule would replace standards issued in 2002 that were remanded to EPA for correction by the U.S. Court of Appeals for the District of Columbia Circuit (Mossville Environmental Action Now v. EPA, D.C. Cir., No. 02-1282, 6/18/04). EPA released the proposed rule informally April 18.